Have you ever wished you could just take a time out on being an adult? What if you could run away and take a week off from big, scary life-changing decisions? Well, that's exactly what the unambitious anti-heroine of Laggies manages in the trailer above!

In Laggies, Knightley will play a woman in her late-twenties whose reaction to a marriage proposal from her boyfriend , to be played by Mark Webber (The End of Love), by lying about a work retreat and seeking guidance from a newly formed relationship with a 16-year-old girl, portrayed by Chloe Moretz (Kick-Ass 2). Sam Rockwell also stars.

The Seattle native is ready to lens Laggies, which centers on a 28-year-old woman in a state of arrested development who responds to her boyfriend’s marriage proposal by fleeing. She tells him she’s going on a retreat, when, in fact, she ends up hanging out with high-school-aged friends who continue to let her escape the reality of growing up